What is a common metric for measuring the success of an ad campaign?

Click-through rate (CTR) is a widely used metric for assessing the effectiveness of an ad campaign. It represents the ratio of users who click on an advertisement to the number of total users who viewed the advertisement, expressed as a percentage. A higher CTR indicates that the ad content is compelling and relevant to the audience, leading to greater engagement. This metric helps advertisers gauge how well their ads are performing in capturing the attention and interest of potential customers.

Total website traffic, while it can provide insight into overall interest in a brand or product, does not specifically measure the effectiveness of an individual ad campaign. Instead, it reflects broader trends in user engagement across an entire site.

The number of advertisements produced is a measure of volume rather than effectiveness. Simply creating more ads does not guarantee that they will perform well or reach the intended audience effectively.

Total ad spending is an important consideration for budgeting and resource allocation but does not directly indicate the success or performance of the campaign itself. Spending more on ads does not necessarily translate to higher engagement or conversions.

In contrast, CTR directly links the ad's visibility to user interaction, making it a valuable metric for evaluating campaign success.